Regarding the lactose utilization system in E. coli, a gratuitous inducer is a molecule that is chemically analogous to lactose and induces the operon, but it is not a substrate for the enzymes of the lac operon

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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If one reproductive strategy of a eukaryotic organism is gamete fusion, what can be concluded about that organism? 

A. The organism reproduces asexually. B. Progeny organisms are identical to each other. C. The organism participates in vertical gene transfer. D. The organism participates in horizontal gene transfer.

Biology & Microbiology

Each carbon atom can share pairs of electrons with as many as ____ other atoms

a. 2 b. 3 c. 4 d. 5 e. 6

Biology & Microbiology

Large amounts of oxygen gas first appeared in Earth's atmosphere about ________ years ago

A) 500,000 B) 10 million C) 2.7 billion D) 3.5 billion

Biology & Microbiology

Which of these becomes the baby?

A) inner cell mass B) trophoblast C) placenta D) outer cell mass

Biology & Microbiology